Senior Backend Engineer, PHP

Reward Gateway

Senior Backend Engineer focused on PHP applications for Reward Gateway, enhancing services and solutions for a better workplace experience. Collaborating with teams globally in a hybrid work setting.

Posted 7/22/2026full-timePlovdiv • 🇬🇧 United KingdomSenior💰 €50,500 - €56,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in backend web application development with a strong focus on PHP 8+, MySQL, and modern software engineering practices. Proficient in collaborating within cross-functional teams and leveraging AI-assisted development tools to enhance productivity and code quality.

Highest-signal resume keywords

PHP 8+MySQLOOP PrinciplesUnit TestingRESTful APIs

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Backend Web Application DevelopmentDesign PatternsIntegration TestingSQLGraphQL

Soft Skills

Excellent English CommunicationCollaboration

Tools & Technologies

PHPUnitPestAI-Assisted Development Tools

Industry Keywords

Agile PracticesTechnical DocumentationCross-Functional Teams

Tech Stack

Tools & technologies

GraphQLMySQLPHPSQL

About the role

Key responsibilities & impact

Interpret, define, and develop software solutions based on written requirements and technical specifications.
Identify opportunities for improvement in existing products and implement enhancements across the platform.
Troubleshoot, test, and maintain core applications and databases to ensure performance, reliability, and scalability.
Collaborate with QA to define acceptance criteria and assist with debugging and issue resolution.
Contribute to the creation and upkeep of comprehensive technical documentation.
Write clean, maintainable, and well-structured code that adheres to established coding standards and best practices.
Work effectively within globally distributed, cross-functional teams.
Participate in mentoring, coaching, and knowledge-sharing initiatives to support team development.

Requirements

What you’ll need

5+ years of experience in backend web application development, with strong proficiency in PHP 8+ and MySQL.
Solid understanding of OOP principles, SOLID, and modern software engineering best practices.
Proven experience applying design patterns to build maintainable and scalable solutions.
Hands-on experience with Unit and Integration testing (e.g., PHPUnit, Pest).
Strong working knowledge of SQL, RESTful APIs, and GraphQL.
Ability to leverage AI‑assisted development tools to improve productivity, code quality, and documentation.
Excellent English communication skills and the ability to collaborate effectively within cross-functional, globally distributed teams.
Comfortable working in environments that follow strong Agile practices, including iterative development, continuous improvement, and close collaboration with product

Benefits

Comp & perks

An online interview with the Senior Talent Partner and Engineering Lead. This should last no longer than 40 minutes.
Final video interview of 75 minutes that will consist of 3 stages. This includes:
50 minutes to discuss your experience and technical abilities
15 minutes to review and discuss a coding exercise
10 minutes to ask questions you may have
Be comfortable. Be you. At Reward Gateway, we want all of our employees to feel comfortable bringing their passion, creativity and individuality to work. We value all cultures, backgrounds and experiences, as we truly believe that diversity drives innovation. Express yourself, join our community and help us Make the World a Better Place to Work.
We hire BETTER. From perks to people, our BETTER approach to hiring earns us more trust, happier people and more world-class talent that help us to make the world a better place to work. Find out more about Reward Gateway's approach to benefits, equality, talent, technology, empathy and what you’ll get in return for joining our Mission at rg.co/lifeatrg.